Thanks, But I want them hold same data addrs. So I just changed your code
to follows:
a := [3]int{1, 2, 3}
b := (&a)[:]
On Friday, November 11, 2016 at 1:55:06 PM UTC+8, kortschak wrote:
>
> They have different layouts in memory. Do you just want to do this:
>
> package main
>
> import (
> "fmt"
> )
>
> func main() {
> a := [3]int{1, 2, 3}
> b := a[:]
> fmt.Println(b)
> }
>
> https://play.golang.org/p/OBY7g3azBE
>
> If so, there's no need for unsafe. If not, what are you trying to do?
>
> On Thu, 2016-11-10 at 21:50 -0800, steve tang wrote:
> > Hi theres,
> >
> > I used unsafe.Pointer to conv Type [3]int to Type []int, But it
> > throws
> > a runtime error, Could anybody tell me why? many thanks. The test
> > code is
> > as follows:
> >
> > package main
> >
> > import (
> > "fmt"
> > "unsafe"
> > )
> >
> > func main() {
> > a := [3]int{1, 2, 3}
> > b := *(*[]int)(unsafe.Pointer(&a))
> > fmt.Println(b)
> > }
>
>
>
>
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